Method of attaching soles to shoes



Jan ll, 1938. J co I 2,105,341

METHOD OF ATTACHING SOLES TO SHOES Original Filed July 15, 1951 INVENTOR. fear/1 4 7 00 Patented Jan. 11, 1938 wires STATES PATENT OFFICE METHOD OF ATTACHING SOLES TO SHOES JosephA nico, Detroit, Mich., assignor to Motor City Tool Co'.,'1nc., a corporation of Michigan Original application July 15, 1931, Serial No. 550,859. Divided and this application June 22,1934, Serial No. 731,966

4 Claims. (01. 12-142) This application constitutes a division of application Serial Number 550,859, filed July 15, 1931, and my invention relates to a new and useful method of attaching soles to shoes.

5 It is an object of the invention to provide a method whereby a sole pressed against a shoe may be fastened thereto by cement, and the cement'or adhesive material quickly dried so as to reduce the operation to a minimum of time.

10 Another object of the invention is the provision of a method whereby the adhesive material may be heated without injuring the leather or material from which the sole is made.

Another object of the invention is the provi- 15 sion of a method whereby the heat may be applied to the area of the sole, and the sole maintained in a ventilated condition while being heated.

. Other objects will appear hereinafter.

20 The invention will be best understood by a reference to the accompanying drawing which forms a part of this specification, and in which,

Fig. l is a central, vertical, sectional View of the invention, showing it applied.

25 Fig. 2 is a bottom plan view of the invention.

Fig. 3 is a sectional view taken on line 33 of Fig. 1.

Fig. 4 is a sectional View taken on line 4-4 of Fig. 1, with a part broken away.

n The machine illustrated for carrying out my method is designed to press a sole on a shoe 1 which is positioned on a suitable support 8 and a heel engaging member 9. The shoe support 8 is provided with perforations, grooves or vents 35 8 to serve as ventilators for ventilating the sole of the shoe 1 so as topermit escape of the vapors as the adhesive material is drying.

The press consists of a trough shaped shell l projecting outwardly from one edge of which is 40 an eyelet l l which is adapted for slidable mounting on a supporting standard l2. A set screw l3 serves to fix this trough shaped shell in position on the standard l2. Secured to each of the edges of the trough shaped shell is a plate M projecting 5 inwardly from the inner surface of the shell and serving as a means-of attachment for one end of the coil springs l5, the opposite ends of which are attached to a flexible woven presser member. This presser member is formed from strips l6 of 50 resilient metal such as spring steel. It will be noted that these strips it are extended longitudinally and transversely and that the strips are spaced from each other to provide openings in a sort of net-work structure. These openings 55 are provided for the purposes of ventilating the sole and permitting the drying of the adhesive affixing material. When the sole is ventilated in this manner, as distinguished from a solid presser member, the drying may take place through the pores of the leather sole, whereas were the presser member to be solid, the drying could take place only at the edges of the sole. This ventilated presser-member permits of a quick drying and aifords a more durable bond. Consequently, the ventilation openings in the presser member coop- 10 eratewith the ventilating openings in the shoe support.

As shown in Fig. 1, the presser member is free of the trough at the outer end thereof, which is that portion engageable with the shank of the shoe with which used.

Swingably mounted on the shell by means of studs l6 and H are yoke arms 3 and I9 projecting upwardly from which is the yoke tree or lever 29. Swingably mounted on the yoke tree or lever 20 is the latch dog 2! held by the spring 22 normally in engagement with the tooth segment 23 which is mounted on the outer surface of the trough shaped shell Ill. The lower end of the yoke arms 18 and I9 are fixedly connected to and preferably formed integral with the presser bars 24 and 25 which engage in the cut away portion or recess 26 formed in the forward end of the trough shaped shell l0. Secured to each of these presser bars I4 is a plate 21 which projects inwardly of 30 the edge of the trough shaped shell and lies in alignment with the corresponding plate [4, these plates 21 serving to provide attachment means for the forwardly positioned springs l5.

Projecting inwardly from the shell I!) at the 3 rear end are bosses 28 and 29, which, together with the forwardly positioned boss 3!], serve as a means for attaching by means of the bolts 3|,

32 and 33, an electric heating element 34 in position, this heating element being provided with a terminal 35 which may be connected by the cables 36 to a suitable source of electrical energy. The construction is such that when the standard I2 is moved downwardly against the compression of the spring 31 by mechanism which is not shown, the presser member consisting of the woven strips of metal 16 will engage the sole and press the same against the shoe 1. By rocking the swingable yoke, the forward end of the presser member may be flexed 5 to conform with the contour of the shoe so that the sole may be engaged throughout its area and firmly pressed into engagement with the shoe. At the same time, the current may be turned on to provide through the heating element 34, the

necessary heat to quickly dry and set the glue or other adhesive affixing means used to secure the sole to the shoe.

In this way, the use of the presser for pressing a sole onto a shoe is reduced to a minimum amount of time, thus increasing the capacity of the apparatus and making it possible to press a greater munber of soles within a specified time.

It will also be noted that the heat element is in spaced relation to the sole so that the heat is radiant heat which radiates through the atmosphere for a distance before reaching the sole. Experience has shown that by directing the heat against the sole in this manner, more efficient results are obtained.

While I have described the method in its preferred form, I do not wish to limit myself specifically to the details herein set out but desire to avail myself of such variations and modificationsas will come within the scope of the appended claims.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

l. The method of attaching porous leather to shoes comprising the steps of placing a cementtreated sole on the bottom of a shoe, applying sole-attaching pressure to said sole and simultaneous with the application of such pressure exposing an appreciable area of the outer surface of said sole and the interior sole surface of said shoe to the drying action of the atmosphere. V I

2. The method of securing a leather outer sole to the leather inner sole of a shoe, comprising interposing a layer of adhesive material between two such soles to cover their entire meeting faces, pressing their meeting faces together to force the adhesive into and through the pores of the leather and simultaneously with the application of pressure exposing an appreciable area of their opposite faces to the drying action of the surrounding atmosphere, and heating the surrounding atmosphere to a temperature sufficient to accelerate drying of the adhesive.

3. The method of attaching a porous leather sole to a shoe comprising the steps of placing a cement-treated sole downwardly upon the bottom of an inverted last mounted shoe, applying a sole attaching pressure to said sole and simultaneously with the application of such pressure exposing to the atmosphere and freely ventilating an appreciable area of the sole outer surface, and at .the same time directing radiant heat downwardly upon the sole while under pressure. 7 4. The method of attaching a porous sole to a shoe comprising the steps of placing a cement treated sole upon the bottom of alast-mounted shoe, applying a sole attaching pressure to said sole and simultaneously with the application of such pressure exposing to the atmosphere and ventilating an appreciable area of the sole outer surface, and at the same time subjecting the sole to the drying action of radiant heat while the sole is under pressure.

JOSEPH AMIGO-r 

